JPS6194285A - Disk store case - Google Patents

Abstract

PURPOSE:To improve the vibration resistance of a disk in a record/reproduction mode by absorbing a disk flexure due to the vibrations or impacts given from outside by a linear or an impact absorbing member. CONSTITUTION:An impact absorbing member 19 is made of a rubber sheet, etc. bonded to the inner side of a case main bosy 11. A line 20 made of a nonwoven fabric, etc. is bonded on the surface of the sheet 19. An optical disk 12 tends to flex largely when the external vibrations or impacts are applied to the device but the sheet 19 absorbs the flexure of the disk 12 which is not absorbed with the nonwoven fabric 20. Thus the movement of the disk 12 is attenuated and the vibration resistance with a disk store case in a record/ reproduction mode is improved.

Description

[Detailed description of the invention] Industrial applications The present invention is a compact disc and a video disc.

The present invention relates to a disk storage case that can be used to store and protect various optical disks such as document file disks, magneto-optical disks, and other disk-shaped recording media, and for recording and reproducing during storage.

Conventional configurations and their problems In recent years, with the practical use of various optical discs such as compact discs and video discs, and the diversification of their uses, these disc-shaped recording media have also been using discs in cases for the purpose of improving reliability. The present invention relates to this type of case, in which recording and reproduction are performed while the device is housed and protected.

An example of a conventional disc storage case will be described below with reference to the drawings.

FIG. 1 is a schematic diagram of the structure of a conventional disc storage case, and shows the state of the apparatus performing recording and reproducing with a disc stored therein.

1 is a case body, 2 is a disk-shaped recording medium, 3 is a spindle motor, 4 is a turntable, 6 is a clamp for fixing the disk 2 on the turntable 4, 6 is an optical pickup, and 7 is an optical pickup with a shutter. The opening 8 into which the holder 6 is inserted is covered from the outside of the case. Since the details of the shutter 7 are not directly related to the present invention, its detailed structure is not depicted.

The operation of the disc case configured as described above when full recording and reproduction is performed with a disc stored therein will be described below.

First, the shutter 7 is moved away from the opening 8 by a mechanism (not shown), and the optical disc 2 is clamped on the turntable 4 by the clamp 6. As a result, the optical pickup 6 and the optical disc 2 are positioned at a predetermined distance. Case 1 and disk 2 are attached so that the case 1 and the disc 2 are attached.

Next, the disk 2 is rotated by the drive of the spindle motor 3, and the optical pickup 61i is kept at a constant distance from the optical disk 2 while opening 8Kj? disc 2 while moving
Perform recording and playback.

At this time, a gap is provided between the optical disc 2 and the case body 1, so even if the optical disc 2 is shaken, the optical disc 2 and the case body 1 will not come into contact during normal rotation, and recording and playback will be performed without any interference. It will be done.

However, in the above configuration, if external vibrations or shocks are applied to the device, the optical disk 2F
Since the distortion exceeds the allowable limit, it becomes impossible to control the optical pickup 6, making recording and playback impossible.In addition, in some cases, the optical disc 2 and the case body 1 may come into contact, damaging the surface of the optical disc and impairing its reliability. However, there were problems in that it led to a decline in performance.

Note that scratches on the disk surface are a problem not only during recording and reproduction, but also when external forces similar to those described above are applied while the disk is left outside the device.

Another problem is that if dust or the like gets into the case and adheres to the disk surface, stable recording and playback becomes impossible.

Purpose of the Invention The purpose of the present invention is to suppress the deflection of the disk during recording and playback, thereby improving vibration resistance and preventing scratches that can lead to decreased reliability, as well as protecting the disk from damage even when it is left outside the device. The present invention relates to a disc storage case that enables stable recording and playback by preventing this.

Composition of the Invention The disc storage case of the present invention includes a cavity capable of storing a disc-shaped recording medium, and a cavity for storing the disc-shaped recording medium;
It has an opening for rotational driving and recording/reproduction from the outside, and a shutter for opening and closing the opening, a shock absorbing material is pasted on the inner surface, and the disk-shaped recording medium is attached to the surface of the shock absorbing material. It has a structure in which a liner that slides into contact is attached, which suppresses the deflection of the disk, improves vibration resistance during recording and playback, and prevents scratches on the disk that can lead to decreased reliability. This also prevents the disc from being damaged if it is left outside the device.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to all the drawings.

FIG. 2 is a schematic diagram of the structure of a disc storage case according to an embodiment of the present invention, and shows the state in which recording and reproduction are performed with a disc stored therein.

11 is the case body, 12 is an optical disc, 13 is a speardle motor% 14 is a turntable, 15 is a disc 12
a clamp for fixing the on the turntable 14;
16 is an optical pickup, and 17 is a shutter which covers the opening into which the optical pickup 16 enters from the outside of the first case. The details of the shutter 17 are not directly related to the present invention, so it is difficult to describe them in detail. 19 is a shock absorbing material made of a rubber sheet etc. stuck to the inner surface of the case body 11; 2';
0 is a liner made of nonwoven fabric or the like that is adhered to the surface of the rubber sheet 190.

The operation of the disc case configured as described above when recording and reproducing is performed with all the discs housed will be described below.

First, the shutter 17 is moved away from the opening 018 by a mechanism not shown, and the optical disc 1 is placed on the turntable 14.
2 is clamped by the clamp 16, resulting in
Case 11 and disc 1 are arranged so that optical pickup 16 and optical disc 12 are located at a predetermined distance.
2 is installed.

Next, the disk drive 12 is rotated by the drive of the spindle motor 13, and the optical pickup 16 always carries out the recording and reproduction of the disk 12 while keeping a constant distance from the disk 12 while moving through the aperture 1B. 1
2 rotates while slidingly contacting the nonwoven fabric 20 attached to the surface of the rubber sheet 190. During normal rotation, the nonwoven fabric 20 absorbs the surface wobbling of the optical disk 12, and at the same time removes the deposits on the disk surface while removing any hindrances. The next recording and playback will be performed stably without any problems.

When external vibrations and shocks are applied to the device, the optical disc 12 tends to sag greatly, but in this embodiment, the rubber sheet 19 absorbs the sag of the optical disc 12 that cannot be absorbed by the nonwoven fabric 2o. , the movement of the optical disc 12 is attenuated.

This improves the vibration resistance of the device during recording and reproduction.

Furthermore, since the surface of the optical disc 12 is always covered with the nonwoven fabric 20, damage to the disc surface that would lead to a decrease in reliability is prevented.

Furthermore, even when not attached to a device other than during recording and playback, the same effect can be obtained against external vibrations and shocks.
The nonwoven fabric 20 absorbs small vibrations and shocks, and the rubber sheet 19 absorbs large vibrations and shocks, and the surface of the optical disc 12 is always covered with the nonwoven fabric 20 to prevent deformation of the optical disc 12. Scratches on the surface are prevented, and deterioration in reliability and performance is also prevented.

As described above, according to this embodiment, a rubber sheet is attached to the inner surface of the storage case, and a liner that makes sliding contact with the disk is attached to the surface of the rubber sheet. Improved vibration resistance, improved reliability by preventing scratches on the surface of the optical disk 120, and stable recording and reproduction by removing deposits on the disk surface during recording and reproduction.

In the above embodiment, the disk-shaped recording medium is an optical disk, but the disk-shaped recording medium is not limited to the optical disk 12, and any disk that can record all information may be used. For example, a magnetic disk or the like may be used. can.

Furthermore, in the above embodiment, the rubber-like sheet 19 was used as the shock-absorbing material, but the shock-absorbing material is not limited to the rubber-like sheet 19, and may be any material as long as it has the function of absorbing and attenuating shock. Good too.

For example, sponge, styrofoam, etc. can be used.

Furthermore, in the above embodiment, the liner was the nonwoven fabric 20, but
The liner is not limited to the nonwoven fabric 20, but may be any other material as long as it slides on the disk surface without damaging it and has the function of removing deposits from the disk surface. For example, felt cloth, cotton, etc. can be used.

Effects of the Invention As is clear from the above explanation, the present invention has a structure in which a shock absorbing material is attached to the inner surface of the disk storage case, and a liner that comes into sliding contact with the disk-shaped recording medium is further attached to the surface of the shock absorbing material. By absorbing the deflection of the disk due to external vibrations and shocks with the liner and shock absorbing material, an excellent effect of improving vibration resistance during recording and reproduction can be obtained.

In addition, the surface of the disk is always covered with a liner, and the liner is attached to the surface of the shock absorbing material, which prevents scratches on the disk surface or deformation of the disk, and has the excellent effect of improving reliability. It will be done.

Furthermore, even during normal recording and reproduction, the removal of deposits on the disk surface stabilizes the disk surface and enables the next operation, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the structure of a conventional disc storage case, and FIG. 2 is a schematic diagram of the structure of a disc storage case in an embodiment of the present invention. 11... Case body, 12... Optical disk, 13... Spindle motor, 14...
... Turntable, 16 ... Clamp, 1
8...Opening, 19...Shock absorbing material, 2
0... Raina.

Claims (1)

[Claims] a cavity capable of accommodating a disc-shaped recording medium; an opening for externally attaching a rotation drive means to the disc-shaped recording medium; a shock absorbing material affixed to an inner surface of the cavity; A disk storage case characterized by comprising a liner that is adhered to the surface of a shock absorbing material and comes into sliding contact with the disk-shaped recording medium.